DS-User F1 Help for GUI (Context-Sensitive) : Set Properties - Performance tab (Windows DS-Client)
 
Set Properties - Performance tab (Windows DS-Client)
This screen can appear in a wizard or a properties dialog box. It allows you to view and change the Performance settings for individual backup sets.
 
Maximum pending asynchronous I/O for a file
This is the maximum I/O operations the DS-Client will queue for each file from this backup set.
Use DS-Client’s settings
(Default) Uses the setting in the DS-Client Advanced Configurations > Category: Performance > Parameter: MaxPendingIOPerFile.
Use specific value
You can override the default and set a custom value that only applies for this backup set.
This option is intended for high performance backup environments. You must be able to test the different settings to determine the optimal value.
This is only useful if the target storage containing the backup data is fast and efficient enough to take advantage of the increased I/O.
WARNING: Slower storage can suffer performance drops if this value is increased too much.
Read buffer size for backup
This option adjusts the internal buffer amount that the DS-Client allocates for reading individual files for backup.
Use DS-Client’s settings
(Default) Uses the setting in the DS-Client Advanced Configurations > Category: Performance > Parameter: FileReadBufferSize.
Use specific buffer size (KB)
You can override the default and set a custom value that only applies for this backup set.
You must be able to test the different settings to determine the optimal value.
WARNING: Slower storage can suffer performance drops if this value is not properly set.